00321nam a2200109Ia 4500008004100000040003800041100002300079245005200102260002700154300001500181653001500196211228s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aWolman, Benjamin B 0aContemporary theories and systems in psychology  bHarperaNew Yorkc1960  ax, 613p p.  aPsychology